PropertyValue
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  • tes Department Of EnergyWellbore inertial directional surveying systemUS5657547 *Dec 19, 1994Aug 19, 1997Gyrodata, Inc.Rate gyro wells survey system including nulling systemUS6065219 *Sep 25, 1998May 23, 2000Dresser Industries, Inc.Method and apparatus for determining the shape of an earth borehole and the motion of a tool within the boreholeUS6145378 *Jul 22, 1998Nov 14, 2000Baroid Technology, In
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